I think the github "ticket" is not as useful as the issue track here; I may mistakingly remember
but I think that some of the ruby core team said so. Where github may help of course are
patches and pull requests attached to.

The error "No such file or directory - getcwd (Errno::ENOENT)" may have come from some operation
removing a directory so perhaps the logic in the build-up chain is incorrect. BTW I also see
this on ruby-gnome sometimes, with paths such as "/home/hsbt/chkbuild/tmp/build/" (or ruby-gnome,
it's kou though, not hsbt) - is this general that this path information is included somewhere? It
may be easier to instead use some ENV variable or something, since it is strange that other users
get to see such paths in general. (I just noticed it in ruby-gnome a while ago, now I notice it
here.)